Emma Watson surprised her Harry Potter co-star Dan Radcliffe backstage at his Broadway show last night.

The 21-year-old actress joined the star in his dressing room after watching him perform in How To Succeed In Business Without Really Trying at the Al Hirschfeld Theatre in New York City.

The pair, who are clearly close after their many years on the set of the hit wizard franchise, hugged affectionately as they posed for the camera.

She has previously described their relationship as ‘like brother and sister’.

Radcliffe, also 21, plays J. Pierrepont Finch, a window washer who climbs the corporate ladder in a short space of time.

‘What’s great about the part is that the stuff he does is pretty unpleasant,’ said Daniel. ‘He gets people fired, but you love him for some reason.’

‘You believe in him and want him to succeed and it’s great fun.’

Daniel had singing lessons for his musical debut on the Broadway stage, which has largely won good reviews.

Emma, who this week confirmed she was transferring from Brown University to another school this autumn, has been focusing on her fashion pursuits while taking a break from her studies.

The pair will soon hit the promotional trail to coincide with the release of Harry Potter and the Deathly Hallows: Part 2 in July.

It is the final part of the saga and the actress has admitted she was ‘devastated’ when the finished shooting for the very last time.

Follow us to see more useful information, as well as to give us more motivation to update more useful information for you.